Abstract

The design, construction, and performance of a compact double-beam far infrared spectrophotometer are described. An optical null system which minimizes the loss of energy is used as the photometric system. Efficient filter combinations not involving a crystal chopper are used for eliminating unwanted radiation. All optical components are mounted in a vacuum tank to eliminate the energy loss due to water vapor absorption. Accordingly, high resolution can be obtained through the entire spectral region from 500 cm−1 to 60 cm−1. In the instrument, provision for fully automatic performance is made through the control system which includes a variety of mechanisms. Ease of change from double-beam to single-beam operation is an additional feature.

© 1964 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Improved Double Beam, Vacuum Far Infrared Spectrophotometer

Isao Iwahashi, Koichi Matsumoto, Shunji Matsudaira, Shigeo Minami, and Hiroshi Yoshinaga
Appl. Opt. 8(3) 583-588 (1969)

Recording Vacuum Infrared Prism-Grating Spectrometer*

K. P. Yates and R. F. Buhl
J. Opt. Soc. Am. 45(3) 192-201 (1955)

Absorption of Infrared Radiation by CO2 and H2O. Experimental Techniques*

Darrell E. Burch, David A. Gryvnak, and Richard R. Patty
J. Opt. Soc. Am. 57(7) 885-895 (1967)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription